How do you even know if you are being ignored?
I mean, the fact that a comment you made is not replied to, doesn't mean you are being deliberately ignored . . . does it?
I don't answer every single post on this forum, surely no one does, it is not possible, even if you sat here all day and night.
So lots of people could say I am ignoring them, but it is certainly not deliberate.
For example, loads of threads I don't even bother to go into - like the 'B' threads for example, but it is because I am not interested in all the stooopid arguments there. If the same person posted elsewhere, he/she would probably get a response from me.
I would think if someone was truly, deliberately ignoring you, you would probably know why, then it is up to you what you want to do about it. Either speak to them direct if you care enough, or else let 'em get on with it.